Fast Facts: Immigration Events

— Boycotts: Central theme of the day, with immigrants being urged to boycott work, school and shopping. In Tucson, Ariz., an organizer urged "no buying at all," not even calls to Mexico.

— Rallies: In New York City, immigrants and supporters planned to form human chains in several spots around lunch time. Advocates planned to march in Orlando, Fla., Allentown, Pa., and Seattle, among many other cities. In downtown Louisville, Ky., a procession was scheduled from the federal courthouse to Jefferson Park.

— Schools: New Haven, Conn., schools were bracing for a walkout, as were school officials in Denver. In Gainesville, Ga., administrators sent a letter home to parents saying absences would not be tolerated.